From previous research, we found that prosodic features [1]} such as fundamental frequency or pitch related features containing pitch mean, pitch median, pitch standard deviation, and energy-related features like intensity carry a lot of emotional information [2]}, [3]}. In contrast, the spectral features such as MFCC related features depend on phonemes, and thus the style of an utterance [3]}. Therefore, it can be inferred that spectral features are language-dependent [3]} features, whereas prosodic features are language-independent [1]}, [2]}.
